Solving for Side Length of Right Pyramid with Height/Volume

[Shannog]

Homework Statement

Basically the volume of the pyramid is 554.9 and its height is 15.1. I know that the forumla to find the volume of a pyramid is V=1/3lwh but I'm too dumb to figure out how to switch it around to make it work.

The Attempt at a Solution

I don't even know where to start!

 

[HallsofIvy]

V= (1/3)lwh is the volume of a pyramid with rectangular base with side lengths l and w and height h. If you know the volume of the pyramid, V, and height l, then you can solve for the base area as lw= 3V/h. You cannot solve for l and w separately- they can be any numbers that multiply to give 3V/h. If you know the base is square, with side lengths l= w= s, you have s^2= 3V/h then s= \sqrt{3V/h}.